2f626154e982310a3efc265a8c279dea6c857dac99a96ae698cd797f9dcac174

Analysis

max time kernel
30s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
27-01-2023 11:08

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General

Target

AppSetup.rar
Size

5.6MB
MD5

3320baa8777b655d4be63fb56a35f875
SHA1

9f1f90e1ab9feb0396f4e7d921d56a97b527ffb4
SHA256

2f626154e982310a3efc265a8c279dea6c857dac99a96ae698cd797f9dcac174
SHA512

69a542eabe263575e56f51902213d024786e62f117943ad724d86c54a54d02d299a4c0f77fced040b435e24fc8f18dd87c3869c7b02bd512acc2db29d7a9e5ee
SSDEEP

98304:yiJu9vxyWDY0NXBn7bv4ML50l30EZFZNAAKv64rOtMKzsfB1lKIBFty:yl9pyKlNx7bv4ML50xnFZqAKv64r4I1m

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 2 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

vlc.exe

pid process

396 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vlc.exe

pid process

396 vlc.exe
Suspicious use of FindShellTrayWindow 9 IoCs

Processes:

vlc.exe

pid process

396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
Suspicious use of SendNotifyMessage 8 IoCs

Processes:

vlc.exe

pid process

396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
396 vlc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vlc.exe

pid process

396 vlc.exe

pid	process
396	vlc.exe

pid	process
396	vlc.exe

pid	process
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe

pid	process
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe
396	vlc.exe

pid	process
396	vlc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1744 wrote to memory of 1464	1744	cmd.exe	rundll32.exe
PID 1744 wrote to memory of 1464	1744	cmd.exe	rundll32.exe
PID 1744 wrote to memory of 1464	1744	cmd.exe	rundll32.exe
PID 1464 wrote to memory of 396	1464	rundll32.exe	vlc.exe
PID 1464 wrote to memory of 396	1464	rundll32.exe	vlc.exe
PID 1464 wrote to memory of 396	1464	rundll32.exe	vlc.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\AppSetup.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\AppSetup.rar
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1464

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\AppSetup.rar"
3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:396

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/396-81-0x0000000000000000-mapping.dmp

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memory/1464-76-0x0000000000000000-mapping.dmp

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memory/1744-54-0x000007FEFC201000-0x000007FEFC203000-memory.dmp

Filesize
8KB

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